package lch.service;

import lch.pojo.Member;

import java.util.List;
import java.util.Map;

/**
 * @author lch
 * @date 2019-12-25 11:50
 */
public interface MemberService {
    Member findByTelephone(String telephone);

    void add(Member member);

    List<Integer> findMemberCountByMonths(List<String> months);


}
